Finding the Fourth Proportional to 2,891,422.80, 3,990,187.09 and 1,602,284.71
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Solution
The fourth proportional to 2,891,422.80, 3,990,187.09 and 1,602,284.71 is: 2,211,165.99
Step by Step Solution
- Step 1: Write the proportion equation
2,891,422.80 : 3,990,187.09 = 1,602,284.71 : x - Step 2: Convert to fraction form
2,891,422.80/3,990,187.09 = 1,602,284.71/x - Step 3: Cross multiply
2,891,422.80x = 3,990,187.09 × 1,602,284.71 - Step 4: Simplify right side
2,891,422.80x = 6,393,415,764,346.39 - Step 5: Solve for x
x = 6,393,415,764,346.39/2,891,422.80 - Step 6: Final answer
x = 2,211,165.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.